54FCT574CTDB

Overview

The IDT54FCT574CTDB is an octal D-type flip-flop featuring positive-edge triggering and three-state outputs. It operates on a single 5 V supply with a voltage range of 4.5 V to 5.5 V. The device utilizes a 20-pin ceramic dual in-line package (CDIP). Key electrical parameters include a propagation delay of 6.5 ns, a low-level output current of 48 mA, and a high-level output current of -15 mA. It supports an operating temperature range from -55 °C to +125 °C.

Feature Summary

• Octal D-type flip-flop architecture with positive-edge clock triggering
• Three-state outputs for bus-oriented memory and line driving applications
• High-current drive capability with 48 mA low-level and -15 mA high-level output currents
• Industrial temperature range operation from -55 °C to +125 °C

Applications

• Bus-oriented memory registration
• Line drivers for high-speed data transmission
• Clock buffering and distribution circuits
• Parallel-to-serial conversion modules

Procurement Notes

Verify component authenticity through authorized channels due to the presence of legacy variants. Confirm RoHS compliance status as the specific part number may not meet current environmental directives. Validate package dimensions against the CDIP-20 specification to ensure mechanical compatibility with existing PCB footprints. Check for recent product change notifications regarding manufacturing site transfers or material substitutions that could affect long-term availability.

Selection Notes

Select this component when high-speed octal registration with strong drive capability is required in a hermetic or ruggedized environment. The FCT series offers CMOS compatibility with TTL input levels, simplifying interface design with legacy logic families. Consider the thermal performance and power dissipation characteristics at maximum operating temperatures. Evaluate the trade-off between the higher cost of ceramic packaging and the need for reliability in extreme conditions compared to plastic alternatives.

Part Context

This device belongs to the IDT 54FCT574 family of octal D-type flip-flops. It shares functional similarities with other members like the 54FCT574ATDB but differs in package type and potentially speed grade. The family is designed for high-performance digital systems requiring reliable data storage and transfer. It complements other FCT series components such as bus transceivers and bus drivers to form complete system architectures.

Replacement Considerations

Public confirmed substitute part numbers include IDT54FCT574ATDB and Renesas 54FCT574ATDB. Verify pinout compatibility and electrical specifications before substitution. Ensure the replacement part meets the same temperature and voltage requirements.